Pronunciation: (pôr'tl, pōr'-), [key]
1. a door, gate, or entrance, esp. one of imposing appearance, as to a palace.
2. an iron or steel bent for bracing a framed structure, having curved braces between the vertical members and a horizontal member at the top.
3. an entrance to a tunnel or mine.
Pronunciation: (pôr'tl, pōr'-), [key] Anat.
noting or pertaining to the transverse fissure of the liver.
See portal vein.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.